You ll need to dilute the tsp first just like you would for any other application.
Tsp roof cleaning.
Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.
Tsp in a roof cleaning solution has many benefits and should never be skipped here are just a few.
Apply your solution with a brush.
When cleaning roofs with tsp it is essential to be very careful of the surroundings.
Usually tsp is diluted by adding a half cup of it to almost two gallons of warm water.
Roof stains return in as few as 9 months and the roof mold is worse than before.
1 2 cup tsp to 2 gal.
In it gaf recommends cleaning the roof with a special mixture of 4 gallons of water with 1 gallon of bleach and 1 cup of tsp tri sodium phosphate or how about the asphalt roofing manufacturer s association.
Information about the use of tsp or trisodium phosphate in your roof cleaning solution from peerless roof cleaning tampa fl.
Mix in 3 1 2 cups of all purpose chlorine bleach and 1 2 cup of trisodium phosphate.
For very heavy duty jobs use one cup tsp cleaner to three quarts warm water.
Tsp can be used to clean roofs of all types.
For mildew killing household bleach is added to the tsp water mixture.
Use to properly prepare metal asphalt concrete spray polyurethane foam tpo pvc and in general cleaning of exterior surfaces.
This cleaning needs to be done with extreme care as the phosphates will damage or kill plants around your house if it comes in contact with them.
Warm water for heavy duty cleaning to 1 cup tsp to 3 quarts warm water for ridiculously heavy duty cleaning source the savogran company.
Borax just provides a little longer lasting protection for the roof from algae re growth that is all.
And for those that do not use tsp just water and chlorine they can add a little borax to the mix if they like.
Diluted in water and applied often with a stiff scrub brush it can remove.
Thickens the solution allowing much more dwell time on the roof surface allowing for the use of weaker bleach ratio s.
799 wash n prep roof cleaner is a concentrated liquid tsp substitute product specifically designed to clean roof surfaces prior to applying coatings.
Add an ounce of powdered laundry detergent if the moss covered area you re cleaning is especially dirty.
It wasn t so long ago that trisodium phosphate tsp was a go to choice for tough cleaning jobs especially on exteriors.
Roof cleaning using chemicals like chlorine bleach and tsp trisodium phosphate as a cheap roof cleaning spray to make your shingles look new again is not advisable.
